Home / 137,098.44-189,198.36-83,385.72

Finding the Fourth Proportional to 137,098.44, 189,198.36 and 83,385.72

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Solution

The fourth proportional to 137,098.44, 189,198.36 and 83,385.72 is: 115,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,098.44 : 189,198.36 = 83,385.72 : x
  2. Step 2: Convert to fraction form
    137,098.44/189,198.36 = 83,385.72/x
  3. Step 3: Cross multiply
    137,098.44x = 189,198.36 × 83,385.72
  4. Step 4: Simplify right side
    137,098.44x = 15,776,441,471.42
  5. Step 5: Solve for x
    x = 15,776,441,471.42/137,098.44
  6. Step 6: Final answer
    x = 115,073.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.